Similarly to the massless case [1]}, there are two terms in the LCWF with quark-antiquark state.
Those are depicted in Fig. REF . Let \(|\psi _{q\bar{q}}^1\rangle \) 
denote the wave function corresponding to Fig. REF  (A),
\(\left|\psi _{q \bar{q}}^{1}\right\rangle & \equiv & \sum _{\lambda _{1}, \lambda _{2}} \int _{\Lambda }^{e^{\delta Y} \Lambda } d k^{+} d p^{+} d q^{+} \int d^{2} \mathbf {k} d^{2} \mathbf {p} d^{2} \mathbf {q} \nonumber \\&& \times \left|\bar{q}_{\lambda _{2}}^{\beta }(q) q_{\lambda _{1}}^{\alpha }(p)\right\rangle \frac{\left\langle \bar{q}_{\lambda _{2}}^{\beta }(q) q_{\lambda _{1}}^{\alpha }(p)\left|H_{g q q}\right| g_{i}^{a}(k)\right\rangle \left\langle g_{i}^{a}(k)\left|H_{g}\right| 0\right\rangle }{E_{q \bar{q}}(p, q) E_{g}(k)}\) 
